See 'N' Say: The Farmer Says 

Handpainted, circuit bent toy with several delicious modifications:

-Switch-activated 'fast' knob to speed things up
-Switched-activated 'slow' knob that, you guessed it, slows things down
-Switch-activated 'scramble' knob that jumbles pitches and rhythms
-Switch-activated light sensor that grinds the tone and affects pitch depending on how much light is on it
-two metal 'body contacts' that bend the pitch when touched
two added LED's
-1/8" output jack, with switch to turn off the internal speaker